Facile synthesis of magnesium-based metal-organic framework with tailored nanostructure for effective volatile organic compounds adsorption. Issue 3 (30th March 2022)

• Record Type: Journal Article
• Authors: Hu, Zichu; Liu, Hui; Zuo, Ya; Ji, Yufei; Li, Shujing; Zhang, Wanqi; Liu, Zhechen; Chen, Zhangjing; Zhang, Xiaotao; Wang, Ximing
• Is Part Of: Royal Society open science. Volume 9:Issue 3(2022)
• Publication Date: 2022-03-30
• Subjects: magnesium-based metal-organic framework -- adsorption -- wood drying -- VOCs; Science -- Periodicals; 500
• DOI: 10.1098/rsos.211544
• Languages: English
• ISSNs: 2054-5703

Abstract

Abstract : A novel Mg(II) metal-organic framework (Mg-MOF) was synthesized based on the ligand of 2, 2'-bipyridine-4, 4'-dicarboxylic acid. Single-crystal X-ray structural analysis confirmed that three-dimensional-nanostructure Mg-MOFs formed a monoclinic system with a channel size of 15.733 Å × 23.736 Å. N2 adsorption isotherm, Fourier transform infrared spectroscopy, thermogravimetric analysis and high-resolution transmission electron microscopy were performed to characterize the thermal stability and purity of the Mg-MOFs. The adsorption studies on four typical volatile organic compounds (VOCs) emitted during wood drying showed that Mg-MOFs have noteworthy adsorption capacities, especially for benzene and β-pinene with adsorptions of 182.26 mg g −1 and 144.42 mg g −1, respectively. In addition, the adsorption of Mg-MOFs mainly occurred via natural adsorption, specifically, multi-layer physical adsorption, accompanied by chemical forces, which occurred in the pores where the VOCs molecules combined with active sites. As an adsorbent, Mg-MOFs exhibit versatile behaviour for toxic gas accumulation.